diff --git a/inventories/chaosknoten/host_vars/onlyoffice.yaml b/inventories/chaosknoten/host_vars/onlyoffice.yaml
new file mode 100644
index 0000000..6b9858e
--- /dev/null
+++ b/inventories/chaosknoten/host_vars/onlyoffice.yaml
@@ -0,0 +1,12 @@
+nginx__version_spec: ""
+nginx__configurations:
+  - name: onlyoffice.hamburg.ccc.de
+    content: "{{ lookup('ansible.builtin.file', 'chaosknoten/configs/onlyoffice/nginx/onlyoffice.hamburg.ccc.de.conf') }}"
+
+certbot__version_spec: ""
+certbot__acme_account_email_address: j+letsencrypt-ccchh@jsts.xyz
+certbot__certificate_domains:
+  - "onlyoffice.hamburg.ccc.de"
+
+docker_compose__compose_file_content: "{{ lookup('ansible.builtin.template', 'chaosknoten/configs/onlyoffice/compose.yaml.j2') }}"
+docker_compose__configuration_files: [ ]
diff --git a/inventories/chaosknoten/hosts.yaml b/inventories/chaosknoten/hosts.yaml
index bab9b69..7bffbcc 100644
--- a/inventories/chaosknoten/hosts.yaml
+++ b/inventories/chaosknoten/hosts.yaml
@@ -6,6 +6,7 @@ all:
         keycloak:
         engelsystem:
         wiki:
+        onlyoffice:
     debian_12:
       hosts:
         cloud:
@@ -33,11 +34,16 @@ all:
           ansible_host: wiki-intern.hamburg.ccc.de
           ansible_user: chaos
           ansible_ssh_common_args: -J ssh://public-reverse-proxy.hamburg.ccc.de:42666
+        onlyoffice:
+          ansible_host: onlyoffice-intern.hamburg.ccc.de
+          ansible_user: chaos
+          ansible_ssh_common_args: -J ssh://public-reverse-proxy.hamburg.ccc.de:42666
     docker_compose_hosts:
       hosts:
         pad:
         keycloak:
         engelsystem:
+        onlyoffice:
     nextcloud_hosts:
       hosts:
         cloud:
@@ -48,6 +54,7 @@ all:
         keycloak:
         engelsystem:
         wiki:
+        onlyoffice:
     public_reverse_proxy_hosts:
       hosts:
         public-reverse-proxy:
diff --git a/playbooks/files/chaosknoten/configs/onlyoffice/nginx/onlyoffice.hamburg.ccc.de.conf b/playbooks/files/chaosknoten/configs/onlyoffice/nginx/onlyoffice.hamburg.ccc.de.conf
new file mode 100644
index 0000000..2471525
--- /dev/null
+++ b/playbooks/files/chaosknoten/configs/onlyoffice/nginx/onlyoffice.hamburg.ccc.de.conf
@@ -0,0 +1,37 @@
+# partly generated 2022-01-08, Mozilla Guideline v5.6, nginx 1.17.7, OpenSSL 1.1.1k, intermediate configuration
+# https://ssl-config.mozilla.org/#server=nginx&version=1.17.7&config=intermediate&openssl=1.1.1k&guideline=5.6
+server {
+    # Listen on a custom port for the proxy protocol.
+    listen 8443 ssl http2 proxy_protocol;
+    # Make use of the ngx_http_realip_module to set the $remote_addr and
+    # $remote_port to the client address and client port, when using proxy
+    # protocol.
+    # First set our proxy protocol proxy as trusted.
+    set_real_ip_from 172.31.17.140;
+    # Then tell the realip_module to get the addreses from the proxy protocol
+    # header.
+    real_ip_header proxy_protocol;
+
+    server_name onlyoffice.hamburg.ccc.de;
+
+    ssl_certificate /etc/letsencrypt/live/onlyoffice.hamburg.ccc.de/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/onlyoffice.hamburg.ccc.de/privkey.pem;
+    # verify chain of trust of OCSP response using Root CA and Intermediate certs
+    ssl_trusted_certificate /etc/letsencrypt/live/onlyoffice.hamburg.ccc.de/chain.pem;
+
+    # replace with the IP address of your resolver
+    resolver 1.1.1.1;
+
+    location / {
+        proxy_set_header Host $host;
+        # This is https in any case.
+        proxy_set_header X-Forwarded-Proto https;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+        # HSTS (ngx_http_headers_module is required) (63072000 seconds)
+        add_header Strict-Transport-Security "max-age=63072000" always;
+
+        proxy_pass http://127.0.0.1:8080/;
+    }
+}
diff --git a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf
index f9be7cd..7296f24 100644
--- a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf
+++ b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf
@@ -5,6 +5,7 @@ map $host $upstream_acme_challenge_host {
     keycloak-admin.hamburg.ccc.de 172.31.17.144:31820;
     aes.ccchh.net 172.31.17.145:31820;
     wiki.ccchh.net 172.31.17.146:31820;
+    onlyoffice.hamburg.ccc.de 172.31.17.147:31820;
     default "";
 }
 
diff --git a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf
index 7c1117c..a35a8fa 100644
--- a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf
+++ b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf
@@ -24,6 +24,7 @@ stream {
         keycloak-admin.hamburg.ccc.de 172.31.17.144:8444;
         aes.ccchh.net 172.31.17.145:8443;
         wiki.ccchh.net 172.31.17.146:8443;
+        onlyoffice.hamburg.ccc.de 172.31.17.147:8443;
     }
 
     server {
diff --git a/playbooks/templates/chaosknoten/configs/onlyoffice/compose.yaml.j2 b/playbooks/templates/chaosknoten/configs/onlyoffice/compose.yaml.j2
new file mode 100644
index 0000000..91c26a3
--- /dev/null
+++ b/playbooks/templates/chaosknoten/configs/onlyoffice/compose.yaml.j2
@@ -0,0 +1,17 @@
+## Links & Resources
+#
+# https://helpcenter.onlyoffice.com/installation/docs-community-install-docker.aspx
+
+services:
+  onlyoffice:
+    image: onlyoffice/documentserver:latest
+    restart: unless-stopped
+    volumes:
+      - "./onlyoffice/DocumentServer/logs:/var/log/onlyoffice"
+      - "./onlyoffice/DocumentServer/data:/var/www/onlyoffice/Data"
+      - "./onlyoffice/DocumentServer/lib:/var/lib/onlyoffice"
+      - "./onlyoffice/DocumentServer/db:/var/lib/postgresql"
+    ports:
+      - "8080:80"
+    environment:
+      JWT_SECRET: {{ lookup("community.general.passwordstore", "noc/vm-secrets/chaosknoten/onlyoffice/JWT_SECRET", create=false, missing="error") }}